Examples of org.apache.sling.api.resource.ModifiableValueMap

org.apache.sling.api.resource.ModifiableValueMap
The ModifiableValueMap is an extension of the {@link ValueMap} which allows to modify andpersist properties. All changes to this map are stored in the transient layer of the resource resolver or more precisely in the transient layer of the resource provider managing this resource.
Once {@link ResourceResolver#commit()} is called, thechanges are finally persisted.
The modifiable value map is only changeable through one of these methods
- {@link #put(String,Object)}
- {@link #putAll(java.util.Map)}
- {@link #remove(Object)}
The map is not modifiable through the collections provided by
- {@link #entrySet()}
- {@link #keySet()}
- {@link #values()}
And it can't be modified by these methods:
- {@link #clear()}
A modifiable value map should value {@link ResourceResolver#PROPERTY_RESOURCE_TYPE}to set the resource type of a resource.
A modifiable value map must not support deep writes. A call of a modification method with a path should result in an IllegalArgumentException. @since 2.2

            return false;
        }
    }


    private static void updateThread(ResourceResolver resolver, Resource thread, Map<String, Object> msgProps) throws PersistenceException {
        final ModifiableValueMap thrdProps = thread.adaptTo(ModifiableValueMap.class);
        Long prop = (Long) thrdProps.get(MessageFieldName.LAST_UPDATE);
        Date updatedDate = null; 
        if (prop != null) {
            updatedDate = new Date(prop);
        }
        final String msgProp = (String) msgProps.get(FieldName.DATE);
        SimpleDateFormat sdf = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z");
        final Date msgDate = sdf.parse(msgProp, new ParsePosition(0));
        if (updatedDate == null || msgDate.after(updatedDate)) {
            thrdProps.put(MessageFieldName.LAST_UPDATE, msgDate.getTime());
            resolver.commit();
        } 
    }

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        }
    }


    static void assertLayer(Resource root, List<String> types, int depth) {
        for (Resource child : root.getChildren()) {
            final ModifiableValueMap m = child.adaptTo(ModifiableValueMap.class);
            if (m.keySet().contains(MessageStoreImplRepositoryTest.TEST_RT_KEY)) {
                String type = m.get(MessageStoreImplRepositoryTest.TEST_RT_KEY, String.class);
                assertEquals(String.format("Expecting %s to have %s type", child.getPath(), types.get(depth)), types.get(depth), type);
            }
            if (child.getChildren().iterator().hasNext()) {
                assertLayer(child, types, depth+1);
            }

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    }


    public boolean setLastModified(long arg0) {
        Resource content = getContent();
        if (content != null) {
            ModifiableValueMap map = content.adaptTo(ModifiableValueMap.class);
            if (map != null) {
                map.put("jcr:lastModified", arg0);
                try {
                    this.resolver.commit();
                    return true;
                } catch (PersistenceException e) {
                    // TODO: handle

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            assertNotNull(rsrc);
            final ValueMap beforeVM = rsrc.getValueMap();
            assertEquals("1", beforeVM.get("a"));
            assertEquals("2", beforeVM.get("b"));


            final ModifiableValueMap mvm = rsrc.adaptTo(ModifiableValueMap.class);
            assertNotNull(mvm);
            assertEquals("1", mvm.get("a"));
            assertEquals("2", mvm.get("b"));


            mvm.put("c", "3");
            mvm.remove("a");


            assertNotNull(this.resolver.getResource("/libs/mvmTest"));
            assertNotNull(this.resolver.getResource("/apps/mvmTest"));


            final Resource rsrc2 = this.provider.getResource(this.resolver, path);

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                final String paths[] = (String[])this.getResourceMetadata().get(MergedResourceConstants.METADATA_RESOURCES);


                final Resource copyResource = this.getResourceResolver().getResource(paths[paths.length - 1]);
                try {
                    final Resource newResource = ResourceUtil.getOrCreateResource(this.getResourceResolver(), highestRsrc.getPath(), copyResource.getResourceType(), null, false);
                    final ModifiableValueMap target = newResource.adaptTo(ModifiableValueMap.class);
                    if ( target != null ) {
                        return (AdapterType)new ModifiableProperties(this, target);
                    }
                } catch ( final PersistenceException pe) {
                    // we ignore this for now
                }
                return super.adaptTo(type);
            }
            final ModifiableValueMap target = highestRsrc.adaptTo(ModifiableValueMap.class);
            if ( target != null ) {
                return (AdapterType)new ModifiableProperties(this, target);
            }
        }
        return super.adaptTo(type);

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        assertEquals("", num, attachmentsMsg.size());
        
        final Resource r = resolver.getResource(getResourcePath(msg, store));
        assertNotNull("Expecting non-null Resource", r);
        for (Resource aRes : r.getChildren()) {
            final ModifiableValueMap aMap = aRes.adaptTo(ModifiableValueMap.class);
            BodyPart aMsg = attachmentsMsg.poll();
            assertNotNull("JCR contains more attachments", aMsg);


            for (Field f : aMsg.getHeader().getFields()) {
                String name = f.getName();
                assertEquals("Field "+name+" is different", (aMap.get(name, String.class)), f.getBody());
            }
            
            if (aMsg.getBody() instanceof TextBody) {
                assertEquals("Content is not the same", MessageStoreImpl.getTextPart(aMsg), aMap.get(CONTENT, String.class));
            } else if (aMsg.getBody() instanceof BinaryBody) {
                assertEquals("Content is not the same", getBinPart(aMsg), aMap.get(CONTENT, String.class));
            } else {
                fail("Unknown type of attachment body");
            }
        }
        assertEquals("Message contains more attachments", attachmentsMsg.poll(), null);

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    public void close() throws IOException {
        InputStream ins = null;
        try {
            super.close();


            ModifiableValueMap map = this.content.adaptTo(ModifiableValueMap.class);
            if (map != null) {
                ins = new FileInputStream(tmpFile);
                map.put("jcr:lastModified", System.currentTimeMillis());
                map.put("jcr:data", ins);
                this.content.getResourceResolver().commit();
            }
        } finally {
            if (ins != null) {
                try {

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        {
            // Retrieve and check child resource
            final Resource r = resolver.getResource(fullPath);
            assertNotNull("Expecting Resource at " + fullPath, r);
            final ModifiableValueMap m = r.adaptTo(ModifiableValueMap.class);
            assertValueMap(m, "title", "hello", "text", "world");
            
            // Update child resource
            m.put("more", "fun");
            m.put("title", "changed");
            resolver.commit();
        }
        
        {
            // Retrieve and check updated resource

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        }


        // get or create resource
        Resource result = parentResource.getChild(name);
        if ( result != null ) {
            final ModifiableValueMap vm = result.adaptTo(ModifiableValueMap.class);
            if ( vm == null ) {
                throw new PersistenceException("Resource at " + parentResource.getPath() + '/' + name + " is not modifiable.");
            }
            vm.putAll(props);
        } else {
            result = parentResource.getResourceResolver().create(parentResource, name, props);
        }
        for(final String key : props.keySet()) {
            changes.add(Modification.onModified(result.getPath() + '/' + key));

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            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        } else if (type.equals(ModifiableValueMap.class)) {
            return (AdapterType) new ModifiableValueMap() {


                public Collection<Object> values() {
                    throw new UnsupportedOperationException();
                }

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